* python3.8: bulk removal of now obsolete "_python38" packages.
Done via scripting. No functional change intended or expected.
Some manual tweaks will follow.
* python3.8: further manual tweaks after bulk-3.8-removal.
Unlike the previous commit with automated changes,
I've tested builds for *these* recipes in beta4 64 bits.
* pypandoc: style cleanup, add support for Python 3.10.
* pypandoc: update to version 1.11
Marked as disabled, as we don't actually have a binary/package for
pandoc in the repos (requires GHC).